Screen attachment for windows



Feb. 5, 1952 H. N. RENTON SCREEN ATTACHMENT FOR WINDOWS 3 Sheets-Sheet 1Filed Sept. 2, 1949 nm m m N I HemyMRe/zZW/z; Y @wd @cuLQ ATTORNEYS.

Feb. 5, 1952 H. N. RENTON SCREEN ATTACHMENT FOR WINDOWS 5 Sheets-Shea; z

Filed Sept. 2, 1949 INVENTOR: Hemg/l/fiiezziazz,

ATTORNEYS.

Feb. 5, 1952 RENTON 7 2,584,369

SCREEN ATTACHMENT FOR WINDOWS Filed Sept. 2, F1949 3 Sheets-Sheet 3IIIIIIIIIIIII INVENTOR:

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BY I ATTORNEYS Patented Feb. 5, 1952 7 SCREEN ATTACHMENT F011; WINDOWSHenry N. Renton, Germantown, Pa., assignor to Hunter ManufacturingCorporation, Bristol, Pa., a corporation of Delaware ApplicationSeptember 2, 1949, Serial.No. 113,877

8 Claims. (Cl. 160-100) This invention relates to screen attachments forwindows. More specifically, it is concerned with screen attachments forsliding sash windows of a type wherein a screen sheet is connected atone end to a sash and its other end connected to a roll rotativelysupported on the frame of the window.

My invention is directed toward the provision of a window screenattachment of the kind referred to which is self rolling; which issimple in construction and reliable in operation; which lends itselfreadily to economic production in quantity; which is easily and quicklyapplied to or removed from existent windows; and which, moreover, issturdy against disarrangement in use.

Other objects and attendant advantages will appear from the followingdetailed description of the attached drawings, wherein- Fig. 1 is abroken out view in elevation of a window with a screen attachmentconveniently embodying my invention as it appears from within doors, thescreen being shown in extended or operative position.

Fig. 2 is a vertical section of the organization taken as indicated bythe angled arrows IIII in Fig. 1.

Fig. 3is a fragmentary view in vertical section taken as indicated bythe angled arrows III-III in Fig. 1, showing the screen withdrawn.

Figs. 4 and 5 are fragmentary views on horizontal section taken asindicated respectively by the angled arrows IV-IV and V-V in Fig. 1.

Fig. 6 is a transverse section through one edge of the rollable screensheet of the attachment,

taken as indicated by the angled arrows VI-VI in Fig. 1 and drawn to alarger scale. I V

. Fig. 7 shows a fragment of an alternative form of screen materialwhich may be used in place of the screen sheet shown in Figs. 1-5.

Fig. 8 is a fragmentary view in transverse section taken as indicated bythe angled arrows VIII-VIII in Fig. 7.

Figs. 9, 10 and 11, 12 are views like Figs. 7, 8 showing other alternateforms of. screen material suitable for use in connection with theattachment. 7

The window structure herein illustrated for convenience of exemplifyingmy improved screen attachment, is of the double hung auxiliaryor stormtype constructed of sheet metal with upper and lower' sashes l5 and 16.As shown, the sashes I6, l5 are confined to slide within a frame ofwhich the opposite side bars 11 and the top and bottom bar's l8 and 19are rigidly united. This rigid frame is held in place by an adapterframe whereof'the" opposite side bars 20 and the top and bottom bars 2|and 22 are made to channel section to fit over the corresponding bars'of said rigid frame, and engage telescopically into upper and lowercorner pieces 24 and'25. The adapter frame is thus adjustable forsnug'fit into the opening 26 of the frame '21 of a permanent window of abuilding, with interposition of plastic sealing. material as at' 28 allaround, backed against the shutter stop '29 of said per manent frame.The adapter frame is secured by screws such as shown at 30 in Fig. 4,passed at suitable intervals through its component bars and engaged intothe shutter stop'29. The side edges of the lower sash I6 arelongitudinally grooved. as at 32 in Figs. 3 and 4, to engagefwith guidestrips 33 recessed into the side bars ll of the rigid frame. It-will benoted from Fig. 1 that the guide strips 33 extend up from the bottom bar19 of the rigidfram e l1 and that their length is somewhat less thanhalf the height of the window, as a consequence of which the lower sashHi can be removed from within doors forv convenience of cleaning afterthe manner disclosed in Patent No. 2,329,485,granted to me on September14, 1943. 'Clamp devices (not shown), operable by thumb nuts indicatedat 34 in Figs. 1 and 3, serve asa means for holding the lower sashagainst shifting in different raised positions.

The screen attachment with whichthe present invention is more especiallyconcerned, comprises a roll 35 which is enclosed ina housin 36 of sheetmetal adaptedto be supported on the sill 31 of the permanent windowframe '21. e As shown, the housing 36 has a top walhaback wall, and endwalls which latter are provided with horizontal slots 38 for thejournalling of end trunnions 39 on theroll 35 and of which the loweredges are sloped to correspond with the outward declination of the silltop 31. The end walls of the housing 36 are extended downwardly andinwardlyas shown inFig. 1 to provide short horizontal tongues 40, which,incident to application of the housing to the window, are engagedbeneath oppositely-directed hold-down tongues 4| nailed or screwed tothe top of the sill 31. Riveted to the bottoms of the tongues 40adjacent the front of the housing 36 are rearwardly directed springelements 42 which are biased downwardly and provided with spurs 43 toengage into the top of the sill 31. The spring elements 42 are extendedupwardly of the back of the housing 36 and terminate in finger liftcurls 44. By the means just described, the housing 36 is held againstdisplacement on the window sill with a longitudinal bar 45 at the frontand adjacent the top thereof abutted against the lower corner pieces25'of the adapter frame.

Connected at one end to the roll 35 by an embracing spring clip 50, seeFig. 3, is a flexible screen sheet consisting of a web;of .mesh fabric52 to one face of which are secured, along opposite side edges, strips53 of spring metal which are inherently self coiling and thus tendtoinduce rotation of the roll 35 to wind the screen sheet into a compactcoil, with the several .turns or convolutions of the latter in directmutual contact as shown in Fig. 3. The screen sheet 5| is passed upwardthrough a 'slot 55 formed between the inner edge of the top of housing36 and the bar 45, and its transverse distal edge is wrapped about a rod"55 and clamped within the longitudinal recess '51 of atermi'nal'strip58. As shown, the terminal strip 58 is fashioned from sheetmaterial with a horizontal clip flange "5-9 at the top adapted tofrictionally engage, with capacity for detachment, 'over the outwardlyprojecting flange 50 of an angle strip 6| afflxedto "the inside face ofthe bottom rail of the lower sash it. For guidance of the screen 5|,I'have provided channels '62 at the opposite sides of the window toreceive the spring strips 53 at the screen edges. As shown Fig. 5, the,inner flanges '63 of the channels -62 are extended laterally to reachinward between the sidebars I! of the rigid frame and the contiguouslongitudinal flanges of "the side bars of the adapter frame. Registeringspot indentations'shownat 65 in 'Fig. 5,are relied upon to hold theguides 62 against displacement in "assembly.

As ithesash 1'6 is raised, the screen sheet 5''], by virtue of theattachment to said sash, is drawn from the "roll 35 through the slot 55at the top of the housing '36 against the resistance 'of the springstrips '53 which are constrained to travel in straight paths by theguides 6'2, with the mesh 52 spanned perfectly flat between them. Whenraised to the "desired height, the sash "I6 is secured by tighteningthumb "nuts 34. Asthe sash I6 is lowered, the roll 3'5 is rotated by theself coiling action of the spring strips 53 and the screen 5| collectedthereon in the form of a compact mass as shown in Fig. 3. incident tothe operation of the screen 51, "the "roll 36 will shiftits position tocompensate for change in the diameter'of the screen coil as the latterdecreases or increases in size, since the roll trunniohs 39 are freetomove transversely'within the slots 38 in the ends of the housing 35.Smooth travel of the screen'through the slot 55 and of its stripreinforced side edges in the guides 62 is in this way preassured.

To prevent the sash Hi from falling out'o'f the frame when fully raisedwith the screen attached, I have further provided, in accordance with myinvention, auxiliary guards which are shown at 61 in Figs. '1, '2 and 4.These guards have the formof-vertically-arranged spring tongues whichare curvdoutwardly "top and bottomto facilitate 4 entry and retirementof the top edge of the sash beneath and from beneath them, and which areformed with lateral shanks 68 to engage, like the flanges of the guides62, between the side bars ll of the'fixed frame and the overlap flangesof the side bars 20 of the adapter frame, and to be held in assembly byinterengaging spot indentations as at 69 in Fig. 4. It is to beunderstood that the guards 51 are disposed at an elevation well abovethe tops of the sash guides 33 to permit upward and inward removal ofthe sash in the manner hereinbefore stated.

The mesh fabric 5| maybe woven from textile yarn or from metallic wireas desired, and the conventionally indicated at 10, or they may besecured by rivets II at lengthwise intervals as shown in Figs. 7 and 8.As an alternative, the

' spring strips may be interwoven with the mesh fabric i'slightly inwardof its side edges after the manner illustrated in Figs. 9 and 10 or asshown in Figs. ,-1-1 and 12,1instead of wide strips, several narrowerspring strips 53a may be interwoven in closely spaced relation adjacenteach side edge of the mesh fabric. These various types of screenmaterial illustrated and the method of producing them have been madesubjects of a separate patent application, Serial No. 114,809, filed byme also concurrently herewith.

My improved screen attachment is not necessarily restricted in-its useto the lower sash of the illustrated window, since it can be adapted asreadily for use with the upper sash, in which case the roll housing willbe secured to the top cross member of the permanent window and thedistal edge of 'the screen sheet attached to the top bar of said uppersash. Moreover, through suitable modifications within the scope of theappended claims, the 'atta'chment -c'an be adapted for use in connectionwith thes'ashes of permanent windows in climates where auxiliary orstorm windows are not desired or necessary.

Having thus described my invention, =I claim:-

1. A Window screen 'compris'ingasheetof mesh fabric with strands of selfcoiling spring metal afllxed along its opposite side edges, one end ofthe sheet adapted to be secured to a roll -freely rotatablysupportedin afixed portion of the window, and means at the other end of the sheet for'detachably securing the sheet to a cross .rail of a slidingsash of thevt ind'owi 2. A window screen according to claim .1, wherein the-selfcoiling spring strands .are of .flat strip metal and secured toone faceof the mesh fabric at lengthwise intervals by riveting.

'3. A window screen according toolaim 1, wherein the mesh fabric is ofnon-metallic material; and wherein the "self coiling spring --strandsare of flat strip me'talce'mented to one face-of the fabric along itsopposite edges.

4. Awindow screenaccordingtoclaim lywherw in the mesh fabric is ofmetal; and wherein the self coiling spring strands are flat me'tal stripwoven into the fabric at opposite side 'edges.

5. A windoW-screena'ccording tov claim 1, wherein the self coilingspring strands are of .flat strip metal and Zare cemented to the meshfabric opposite side edges thereof. 7

6. Awindow screeneaccording to claim ,1, wherein the 'self:'coilin'gspring strands are of :flat strip metal interlacedwith the fabric atopposite side edges thereof.

7. A window screen Fcom prising asheetobmesh fabric with "strands of:ISBH coiling spring .metal afilx'e'd along its opposite side edges,"one end :of

the sheet adapted to be secured to a roll freely rotatably supported ina housing for thescreen, and means at the other end of the sheet fordetachably securing the sheet to a cross rail of a sliding sash of thewindow.

8. A window screen comprising-a sheet of mesh fabric with strands ofself coiling spring metal affixed along its opposite side edges, one endof the sheet adapted to be secured to a roll freely rotatably supportedin a fixed portion of the window, and the other end of the sheet havinga horizontally disposed clip flange adapted to detachably secure thesheet to a horizontal flange aflixed to a sliding sash of the window.

HENRY N. RENTON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,287,135 Swanson Dec. 10, 19181,595,234 Kuyper Aug. 10, 1926 1,983,617 Ladon Dec. 11, 1934 2,050,156Borghetty Aug. 4, 1936 2,261,443 McGraw Nov. 4, 1941

